Originally Posted by
Palomar01
I also did replace the rear Cassette (11-28t) with an 11-25t. I found this gearing fitted the FSA Energy crank that has 50/34 much, much better due to closer spacing near the bigger gears. I really don't even use the 34/25 combination even on long hills. The bike is light enough so I can power up 99% of hills in the 34/23 gear. I plan to switch to the 11-23 cassette to take full advantage of the 10-speed and get even closer spacing in the middle.
I also switched the cassette to 11-23, and it makes it feel much more efficient. If you're concerned about hills, an 11-25 may be better, but an 11-28 was just too "mountain-bikey" for me and I felt like I gave up a lot of useful mid-range gears.
Keep the carbon fork. It's plenty strong.